Flask-supporting means for turnover devices



March 17, 1931. R. F. RINGLE FLASK SUPPORTING MEANS FOR TURNOVER DEVICES Filed July 2. 1929 2 Sheets-Sheet l d u; i Ill-ll fl llll T i INVENTOR March 17, 1931. RINGLE 1,796,305

FLASK SUPPORTING MEANS FOR TURNOVER DEVICES Filed July 2, 1929 2 Sheets-Sheet 2 I flame Ema Zea RQBERT F. RINGLE, OF ZELIENOPLE, PENNSYLVANIA FLASK-SUPPORTING MEANS FOR TURNOVER DEVICES Application filed July 2, 1929. Serial No. 375,559.

My invention refers to improvements in molding machines of the general type illu trated in prior patentof Austin and Ringle ;t.l,:2e3,030, of October 16, 1917. It has in View to provide means for making operative engagement between the raising and lowering equalizingtable and the flask for accurate engagement therebetween and for lowering the flask from the pattern after molding, and

10 reversal of the flask.

The invention specifically relates to the construction of the connection between the turnover arms and the associated bracket mechanism for supporting the turnover plate, whereby'to effect easy movement with continuous support and prevention of shock due to changing relations of the parts and gravitating tendency.

Also, to provide means for securely and et- 20 fectively combining the turnover arms with such supporting mechanism as to effect easy and convenient separation when desired, with mamtenance of relationsh1p during turning and in the suspended position of the turnover plate and the pattern and associated flask prior to adjustment thereto of the equalizing table and removal of the flask downwardly. V

The complete molding machine and the present improvement are embodied in an entire operative mechanism including the arring table on which the flask and its contained.

sand are vibrated or agitated; turnover mechanism by which the flask and the packed sand surrounding the pattern are elevated away from the jarring table and rotated one-half revolution for location above the lowering mechanism, and such lowering mechanism and equalizing table, and the operative parts thereof forming the subject matter of the present application.

In the drawings illustrating one preferred F 8 is an edge elevation thereof; Fig. 4 is a sectional detail view on the line TV IV of Fig. 3;

Fig. 5 is a detail view in side elevation showing the adjusting end for the bearing shoe;

F 6 is a view similar to Fig. 2, showing the position of the parts when the turnover arm is erected.

'lhe motor actuating or power imparting unit for the turnover and flask lowering mechanism is generally indicated at A and 13 131 operative relation to the jarring machine B, both of which are of well known construction, and generally similar to the apr paratusshown in the above mentioned patent.

,The jarring machine B is provided with theusual table 2 upon which the flask 8 is supported with the intervening pattern supporting turnover plate 4. These elements, I"

as well as the vibrating mechanism for jarring the table, are of well understood construction and operation, and need not be further described.

The turnover plate 4 is provided at each end with laterally extending side arms 5 havng outwardly open tapered sockets 6, tapering upwardly when the turnover arms are in laterally extended position for placement of the flask on bumping machine B, as in Figs. 1, 2 and 3.

Each turnover arm 7 is provided with a co-acting tapered wedge or socket block or key 8 conforming to the tapered socket 6 and fitting upwardly thereinto in such position, such block being pivotally connected with the outer end of arm 7 by hinge pin 9.

The controlling rods 10 are provided with connected heads 11 which are pivotally connected at 12 with a stud extending outwardly from the outer end of wedge block 8. Head 11 is also provided with a covering protecting hood 13, completely surrounding the outer terminal end of arm 5 for protection thereof from dust, sand, or other foreign matter.

Head 11 is also provided with a slidably mounted shoe 14 formed with a groove 15 adapted to engage a tongue 16 upon the rear face 0]": head 11. The shoe 14 is further provided with slotted openings 16a to receive screws or bolts 17 for securing the shoe to the head.

A central adjusting screw 18 having a lock nut is mounted for adjustment inwardly or outwardly 01L shoe 1%, to adjust it to proper bearing position or relation to the outer rounded head 19 of arm 5, when the turnover arms are thrown around to the dash removing position shown in dotted lines in 1 and 6. Shoe let at its inner end is termed. with an arcuate surface 20 adapted to receive the rounded head 19 of the arm 5, when the flask is erected as in Fig. 6.

" T are mounted on rock-shaft 21 e across in bearings 22 of the main hie machine A, and operatively by lever 23 and connecting rod uger 25 of c 'nder 2G. Said cyls parts are generally similar to 1e said patent and op rate to throw ever 23 and r0 k-Sllii'ft 21 around through one-quarter revelation, more or less.

hotation of the turnover plate t and flask is et fected by restraining or limiting action controlling rod pivotally mounted at and 2. so that as e turnover arms swing upwardly and eve of the flask reversed above table C, as shown in Fig. 1.

In operation, the parts are first positioned as shown in full lines in Fig. 1. In this position the table 2 of the arring machine B alternately raised and lowered to jar the sand and the flask 3. During such jarring operation the turnover plate 4 and its arms will be alternately raised and lowered, and tapered sockets 6 will alternately leave and engage co-acting tapered socket blocks 8.

lVhen the arring operation is completed, i'uid such as compressed air is admitted to thlinder 26 by any suitable control means (not ti imparted to piss 16 th 1', the position the equalizing w o co shown), whereby in ten and connec rod 2%, raising the arms 7 by means 01 lever and rock-shaft 21, to the position shown in dotted lines in Fig. 1. Durin this rotation controlling rods 10 rotate the turnover plate iand its arms 5 about the pivot point 12.

Rounded heads 1 suri 0 ct their 9 of arms 5 engage arcuate respective shoes 14-, thereby sup orti tne t in their inverted ]3OS t1011.

lilqualir-zing is mounted upon *ger T2 oi cylinder 71 subject to lifting IlCi on of pressure of operating fluid through m. i m port :o and connection a irom valve D. JLlIG flask being in the elevated pos1t1on,F1g. 1, the equai table 0 is lifted by the plunger to support The clamps connecting the plate with the flasks being then removed, the

1 ask may be lowered for the usual slight agitation and removal from the pattern, which depends from the turnover plate.

'lhe parts being thus separated, arms 7 and said plate may then be returned for an in never plate i and flask 3' other operation, the flask being lowered by plunger 72 upon exhausting fluid pressure through valve D. The lowering of the plunger with cushioning action of the springs, etc, is generally the same as the operation described in the patent noted.

The cons-1' uction of valve D is more fully described in my companion application Ser. l'lo.

lVhat I claim is 1 in a flask turnover device, a flask suplevating means therefor having an elet t 1:: flask support in one posii: n and a bearing device for said element in position.

flask turnover device, flask supports sockets, a of turnover arms havertitting engaging elements therefor, controllii arms connected therewith a agindepeudent bearing members for said flask ,upports.

acr

:rnovcr device, flask supports a p 1 of turnover arms havengaging elements therefor, ir 1. c connected therewith having rpendent bearing members for said flask :orts. and means for adjusting said hearing members.

4:. In a nover device, flask supports sockets, a pair of turnover ing pivotally connected heads ensockets, controlling arms pivot- V connected with the heads, and means on the controlling ms for indepenoently supig the heads.

n flask turnover device, flask supports havii tapered sockets. a pair of turnover arms having pivotally connected heads eng aging said sockets and provided with beari terminals, controlhn g arms pivotally con- ROBE :-.T F. RINGLE. 

